HLE No Tools: Humanity's Last Exam — No Tools
Humanity's Last Exam expert-level cross-domain reasoning benchmark measured without external tools. Kept separate from with-tools and Pro-compute variants. High benchmark score alone doesn't make a model the right pick — weigh it against pricing, API availability, and release date.
Models ranked
2
tracked on this benchmark
Score band
49.8 – 41.4
best → lowest tracked
Snapshot trend
+8.40
Apr 24 → May 28 · 1 models
Leaderboard
Tracked models ranked by Accuracy (higher is better).
Notes: Official Anthropic launch benchmark.
Notes: No-tools variant kept separate from with-tools and Pro-compute HLE rows.
How to read this benchmark
This benchmark scores models where higher is better. Scores are useful for directional filtering and shortlisting — not for universal quality ranking. Prefer benchmarks closest to your workload, then validate the linked model pages for pricing, context window, and provider availability.
Trust this score when
- There is a fresh timestamped snapshot (or multiple snapshots) for this benchmark.
- The model list covers the same version family you can actually deploy today.
- Top candidates overlap with your required routing and feature requirements.
Be cautious when
- There is only one benchmark snapshot or the dataset appears stale.
- The benchmark metric direction is opposite of your decision objective.
- The score difference between options is narrow and likely within implementation variance.
FAQ
What does the HLE No Tools benchmark measure?
Humanity's Last Exam expert-level cross-domain reasoning benchmark measured without external tools. Kept separate from with-tools and Pro-compute variants. On this page it lists 2 tracked model variants where higher is better.
Is a higher Humanity's Last Exam — No Tools score always better?
For this benchmark, higher is better. A high score helps you shortlist, but confirm pricing, context window, and provider availability on each model page before committing — the top scorer is not always the right pick for your workload or budget.
How current is this Humanity's Last Exam — No Tools data?
This benchmark was last reviewed on Jun 17, 2026. The tracked score average moved +8.40 points across the last 2 snapshots.
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Last reviewed: Jun 17, 2026